PMID- 20412436 OWN - NLM STAT- MEDLINE DCOM- 20100913 LR - 20161018 IS - 0891-6640 (Print) IS - 0891-6640 (Linking) VI - 24 IP - 4 DP - 2010 Jul-Aug TI - Cardiac troponin I in Doberman Pinschers with cardiomyopathy. PG - 843-9 LID - 10.1111/j.1939-1676.2010.0516.x [doi] AB - BACKGROUND: Cardiac troponin I (cTnI) is useful for detection of cardiac myocyte damage, but its efficacy in detecting various stages of dilated cardiomyopathy (DCM) in Doberman Pinschers is unclear. OBJECTIVES: To evaluate the diagnostic value of cTnI in various stages of DCM in Dobermans. ANIMALS: Six hundred and fifty-three cTnI measurements of 336 Doberman Pinschers. METHODS: Using a longitudinal study design, staging of the disease was based upon 24-hour-ambulatory-ECG (Holter) and echocardiography. A total of 447 cTnI measurements were performed in 264 healthy Dobermans, and 206 cTnI measurements in 75 Dobermans with cardiomyopathy. Eighty-eight cTnI samples were from dogs with >100 ventricular premature contractions (VPCs)/24 hour, but without echocardiographic changes ("VPC group"). Additional 19 samples originated from dogs with only echocardiographic changes ("ECHO group"), and 56 samples from dogs with both VPCs and echocardiographic changes ("VPC plus ECHO group"). Twenty samples were from dogs with clinical signs ("clinical group"). The group "incipient" included 23 dogs, that were considered to be normal according to Holter and echocardiography at the time of the exam, but that developed DCM within 1.5 years. RESULTS: cTnI values of dogs in all disease groups, including the "incipient" (0.30+/-0.20) and "VPC group" (0.36+/-0.34), were significantly (P=.04, P<.001) higher than the control group (0.07+/-0.16). A cut-off value of >0.22 ng/mL had a sensitivity of 79.5% and a specificity of 84.4% to detect all forms of cardiomyopathy. CONCLUSIONS AND CLINICAL IMPORTANCE: cTnI measurement is a valuable diagnostic test that can detect cardiomyopathy in dogs that are otherwise clinically normal. FAU - Wess, G AU - Wess G AD - Clinic of Small Animal Medicine, Statistical Consulting Unit, LMU University, Munich, Germany. gwess@lmu.de FAU - Simak, J AU - Simak J FAU - Mahling, M AU - Mahling M FAU - Hartmann, K AU - Hartmann K LA - eng PT - Journal Article DEP - 20100416 PL - United States TA - J Vet Intern Med JT - Journal of veterinary internal medicine JID - 8708660 RN - 0 (Troponin I) SB - IM MH - Aging MH - Animals MH - Cardiomyopathy, Dilated/blood/diagnosis/*veterinary MH - Dog Diseases/*blood/diagnosis MH - Dogs MH - Female MH - Male MH - Troponin I/*blood EDAT- 2010/04/24 06:00 MHDA- 2010/09/14 06:00 CRDT- 2010/04/24 06:00 PHST- 2010/04/24 06:00 [entrez] PHST- 2010/04/24 06:00 [pubmed] PHST- 2010/09/14 06:00 [medline] AID - JVIM516 [pii] AID - 10.1111/j.1939-1676.2010.0516.x [doi] PST - ppublish SO - J Vet Intern Med. 2010 Jul-Aug;24(4):843-9. doi: 10.1111/j.1939-1676.2010.0516.x. Epub 2010 Apr 16.